Air-line oiler



A. E. PETERS AIR LINE OILER June 4, 1929.

Filed Sepi. 9, 1927 INVENTOR. z' Zz u EPeezs www;

Hfs AT' RNEY".

Patented June I4, 1929. e... 1 if f 4UNITED sTA'i-ss PATENT OFFICE.

ARTHUR E. PETERS, OF LITTLETON, COLORADO, ASSIGNOR TO INGERSOLLRAND COM- PANY, 0F JERSEY CITY, JERSEY, A CQRPORATION OF NEW JERSEY.

AIR-LINE OILER.

Application led September This invention relates to oiling devices, but more particularly tov an air line oiler adapted to be attached to the air line whereby pressure fluid is being conveyed tomachines intended to be actuated thereby. i r lhe ob'ects of the invention are to supply lubricantin suitable quantities and form to rock drills` and y other similar machines through the medium of the pressure fluid whereby such machines are actuated, to en l able such lubricant to be introduced intothe vpressurelluid supply in any of the various positions whichthe oiler may assulnein practice, and to render the oiler readily adjustable so that the amount of lubricant supplied to the pressure fluid maybe varied with respect to immediate requirements.

@ther objects will appear hereinafterD and `Kt'oall of `these `ends the invention consists of talrenthrough Figure l on the line 2-2 look`l n10' in the direction indicatedby the arrows, f

i projects into the reservoir F and ,cooperates with, the wall thereof for the purpose of cen- Y l the combination of elements and arrangement O f parts*havingthe general modeof opera- V"tion substantially as hereinafter vdescribed `and claimed and illustrated in the accompanying drawings7 in which constructed in accordance wit-h the practice arrows, v

Figure 2 vis a plan view partly in section 4igure 3 is a transverse view taken through f Figure 1 on the line 3 3 looking in the direcl` tion indicated by the arrows, and

Figure l is a perspective view of the pendulum body and its bearing.

Referring more particularly to the drawings7 the invention comprises casing A anda cover B secured -to the casing by means of stud bolts C and nuts D. The easing A is preferably of substantially cylindrical form and the bottom E of the casing in this instance is concaved so that the outermost vedge ofa reservoir F within the casing Amay lie4 at a lowerelevation than the central portion 'ofthe bottom E. The cover B carries on its f inner surface` an Vannular*shoulder G which ing.

` 'f On the top surface of the cover Bis formed l"an enlargement H' which entends in this in# stance at'its ends beyond thie-esinle`s of the eever Figure l isa sectional elevation ofan oiler e, 1927. serial 110.218.466. i

B. ln the enlargement H is formed a passageway J threaded at its ends to receive the threaded ends ofan air line K through which pressure fluid may be conveyed fromA afsuitable source of supply to a drill or other mai-2 chine intended to be actuated thereby. The

These means comprise a yspindle P' that its free end extends to a 'point near the raised portion of the bottom Wall E. In'this lspindle P are formed two-longitudinal passages Q'and Rffor conveying pressure fluid into the casing'and oil therefrom respectively. The passage R in vthis instance extends from the inner end of the spindle P' to a point near the front lend thereof'while the passag'eQis of somewhat less length and is closed at both ends. .j l y Disposed rotatably on the free: end vof the spindle Pis abearing vS in whichis formed a passage T adapted to register with the'passagey Rin the spindle' and a passage regis tering infall positions ofthe bearing S with the passage Q in the spindle. l

Thebearing S is in the form of ailat plate having two cylindrical 'opposed surfaces V which cooperate.slidablyfw'ith corresponding surfaces W formed in a body Xof a pendu-v lum member Y. l i i The'body X in this instance has endslots `Z through which the' ends ofthe bearing S may extend and the slots Z are preferably of such width that the pendulum Y may move freely on the bearing S and at the Sametime prevent lealnagel of oil between the cooperat- Aing surfaces ofthe Vbea-ring and lthe walls of Although the bearing Sis intended Vto rotate freely on the spindle l?, s ald bearlng 1s preferably held against endwise movement.

The means provided in this instance to prevent such movement consist of al shoulder?) on theend of the spindle l?, which bears against the .front `end ofthe bearing S to prevent movement of thefbearing in a forwar'dly direction. Preferablyja washer c is Y reservoir.

dulum Y to the desired position, the free end of said pendulum is in the form ot' an `cnlarged head Z tapered towards its free end to enable the Inlet opening of a passage c in the pendulum to reach the lowermost point in the The passage e is intended to. convey lubricant from the reservoir and registers with the passage T in the bearing, a groove f being formed in the body X to insure such communication between these passages.

To the end that pressure fluid under maximum pressure may be introduced into the reservoir F to act on the oil within said, reservoir and thus force said oilv through the various passages provided, a passage g formed in the cover B has an inlet port h opening into a Hared end O of the passageway J and with its other end communicates with the passageQ through a port j. Such pressure uid may then ass through these channels through the port ll in the bearin S and thence through a tube c secured in te uppermost portion of the body X and extendinv to a point near the outer wall of the casingV Suitable means are provided for controlling the volume ofV oil which may be delivered from the reservoir into the passageway J as well as to introduce the oil at a oint in the passageway substantially coaXi therewith. To this end a plug o is disposed in a bore` p in the cover B and in this instance is held in sition by means of a screen g interposed lietween said plug and a tiller plu 1" screwed in the outer end of the bore p. rhe plug o in this instance carries at its innermost end a reduced portion s in which is formed a small passage t opening into the passageway J. The rearward end of the passage t opens into an aperture u which communicates with the passage R in the spindle P through ports o in the plug o. The end wall of the aperture u in the plug o is suitably tapered to form a valve seat w for a needle valve n threaded into the plug o. y f Y l Near theouter end of the bore p is formed a chamber y which encircles the screen g and communicates` in this instance with the reservoir F through passages .a and Q to enable oil introduced into the chamber y to pass into the reservoir F.

In the operation of the device, Whenever pressure fluid is admitted into the passageway J a portion thereof will How through the passage, port thence through the passages Q and and t irough the tube k into the reser- Voir F tocrcate a pressure on the surface of the oiI in the reservoir.

Owing to the pressure diferential between the flared portion O and the restricted portion L of the passageway J the pressure acting on the surface of the oilwillbegrelter than that in thev restricted portion L ot the passageway, as a result the oil will be forced through the passage e in the pendulum Y, the passages f, T and R, the-nce through the ports o, the aperture u and the passage t into the restricted portion L of the passageway J. A t this point the oil mingies with thc pressure fluid flowing through the passageway and is carried thereby to the machine intended to be oiled;

As will readily be seen, the inlet opening of the passage e in the pendulum Y may at all times occupy the lower-most position in the casing A. For instance, if the casing A be so disposed that it rests on the bottom wall E the head d of the pendulum will draw that end of said pendulum against the bottom wall E and consequently will elevate'the outlet opening of the tube la above the surface of the oil. Due to the ability of the pendulum Y to thus adjust its position with respect to the casing A, the supply ot' oil in the reservoir F' may be completely exhausted after each refillmg.

Whenever it may be desired'to increase or decrease the supply of oil into the passageway, the needle valve w may bey either screwed into or out of the plug o to regulate the clearance between the needle valve :v and the seat w. This is a desirable feature in devices of this character since it enabies oils of different viscosity to be used with the same device as well as the regulation of the supply for either a single machine or a lurality of machines to which the pressure iiilid may be supplied.

In Figure 4 is indicated the manner in which the bearing S may be assembled in the body X of the pendulum Y. The manner in which this may be accomplished is as follows: First, the bearing lS may be inserted in the body X in substantially the manner indicated in the drawin and after such insertion oi" the bearing7 sai bearing ma be rotated one-quarter revolution, this wil place the bearing in substantially the operative position so that its curved surfaces V may cooperate with the curved surfaces in the body to form a seal between these parts.

I claim:

1. An air line oiler, comprising a casi having an oil reservoir and a. passagewal 1n the form of a Venturi tube for pressure uid, a spindle sup Aorted by the casing and extending into t e reservoir remote from the passagewa said casing and spindle having passages or conveying pressure Huid from the large diameter of the assageway into the reservoir and oil from t reservorr into the throat of the passageway, and a pendulum rotatable on the spindle hav' passages in constant communication the passages in the spindle, said pendulum having a weighted portion to maintain the entrance end of one of the passages in the pendulum in the extreme lowermost point of the reservoir.

2. An air line oiler, comprising a casing having an oil reservoir and a passageway in thc forni of a Venturi tube for pressure fluid, a spindle threaded into the casing and extending into the reservoir remote from the l'nlssageway, said casing and spindle having inlet passages for conveying pressure fluid:

from the .large diameter of the passageway into the reservoir and outlet passages for conveying oil from the reservoir intothe throat of the passageway, a bearing rotatable onthe spindle having passages communicating with the passages in the spindle, and a hollow pendulum rotatable on the bearing conveyingl oil from the reservoir into the outlet passages and pressure Huid from the inlet passages into the reservoir to create a pressure on the oil for forcing the oil into the passageway,rsaid pendulum having a Weighted portion to insure submersion of one end of said pendulum in the oil.

3. An air line oiler, comprising a casing having an oil reservoir and a passageway for pressure fluid, a spindle threaded into the casing and extending into the reservoir, said casing and spindle having inlet passages for conveying pressure fluid from the passagewayinto the reservoir and outlet passages for conveying oil from the reservoir linto the passageway, a bearing rotatable on the spindle having passages communicating with the passages in the spindle,` a hollow pendulum rotatable on the bearing conveying oil from the reservoir into the outlet passages andpressure fluid vfrom the inlet passages into the reservoir to create a pressure on the oil for forcing the oil int-o the passageway, said pendulum having aweighted portion to insure submersion of one end of said pendulum in the oil, and means adjustable in the casing for controlling the volume of oil flowing from the outlet passage into the passageway.

4. An aii line oiler, comprising a casing having an oil reservoir and a passageway for pressure fluid, said passageway being restricted intermediate its ends to create a pressure differential therein, a spindle secured to the `casing and extendinginto the reservoir, a bearing rotatable on the spindle,

communicable outlet passages in the casing,

the spindle and the bearing for conveying oil from thc reservoir into the passageway, communicable inlet passages in the casing,

the spindle and the bearing conveying pressure iiuid from ythe passageway into the reservoir, said inlet passage having an entrance end opening into the passageway remote from the restricted portion, a pendulum rotatable on the bearing having an oil passage 4 for conveying oil to the outlet passage, and a tube on the pendulum conveying pressure fluid into the reservoir, said pendulum havingv a weighted portion to maintain the entrance end of the oil passage in the lowermost point of the reservoir.

V 5. An air line oiler, comprising a casing having an oil reservoir and a passageway for pressure fluid, said passageway being restricted intermediate its ends to create a v opening into thepassagewayremote from the restricted portion, a pendulum rotatable on the bearing having an oil passage, for conveying oil to the outlet passage, a tube on the pendulum conveying pressure fluid into the reservoir, said pendulum having a weighted portion to maintain the entrance .end of the oil passage in the lowermost point of the reservoir, and a needle valve in the casing controlling the volume of oil flowing through the outlet passage into the passage.-

way.

In testimony whereof I have signed thisl specification. Y

ARTHUR E. PETERS. 

